How To Improve E plosive Efficiency In Opencast Mines

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Optimization of Blasting Operation in Opencast Mine

Because modern mines require large amounts of explosives throughout the mine's life, the cost of blasting operation can be significantly reduced by reducing the cost of explosives. Key Words: Optimization, Drilling, Blasting, Opencast mine, Blast model, Explosives, Machinery. 1. INTRODUCTION Pre commencement of topic to introduce MINING

Improving the efficiency of blasting operations in mines ...

To improve the efficiency of blasting operati ons in mines taki ng into consideration the upgrading of equipment used to charge blastholes a s well as application of h igh-pr oductive mining ...

Assessment of Maximum Explosive Charge Used Per …

Assessment of Maximum Explosive Charge Used Per Delay in Surface Mines . MANOJ KHANDELWAL1 & NIKOS MASTORAKIS2. 1Department of Mining Engineering, . College of Technology and Engineering, Maharana Pratap University of Agriculture and Technology, Udaipur – 313 001,

Rock fragmentation control in opencast ... - ScienceDirect

The mine is currently producing 14 Mt of coal per annum. Sonepur Bazari project of Eastern Coalfields Limited is located in the eastern part of Raniganj Coalfields. Four coal seams, i.e. R-IV, R-V, R-VI and R-VII, are mainly exposed in the mine. Presently, seams R-V and R-VI are being extracted by opencast method of mining.

2nd International Conference on Opencast Mining …

Design Considerations for Waste Dumps in Indian Opencast Coal Mines: A Critical Appraisal Prashant K. Nayak, Pankaj K. Dewangan, A. K. Dash NIT RAIPUR 4 Increasing the efficiency of Primary Crusher Alexy Kolesov, Mughlai Uralmash Plant 4 TO EXTRACT INTER MINE BOUNDARY (IMB) OF PUREVA TOP, PUREVA BOTTOM &

Mining Efficiency - PwC Australia

Mining for efficiency 3 Implications • Mining companies understand implicitly that productivity carries a value, but are not armed with the right data to make informed choices on the risks/rewards involved. Costs deferred or eliminated, as well as volume increases, have become the proxy for productivity gains. What's

Influence of density of emulsion explosives on its ...

Opencast mining accounts for about 86% of the produced coal in India. Most of the opencast mines in the country use bulk emulsion explosives. The total consumption of explosives in India is around 550,000 tonnes annually. It has been shown that detonation velocities vary with the density of the emulsion explo-sive.

Increasing productivity, efficiency and safety in mining

Mining is currently seeing the start of what will be the great convergence of IT and operational technologies. Many observers have touted it as the foundation for the industry's next technological step change, which will be focused on an effort to facilitate productivity gains, efficiency, and safety. A study by consultancy firm McKinsey ...

Optimization of the load-and-haul operation at an …

Research shows that an increase in production will ultimately decrease the operation's unit cost, especially fixed costs. In this study a load-and-haul fleet optimization approach has been used to ...

Small steps: safety and efficiency in mining explosives ...

Small steps: safety and efficiency in mining explosives. Blasting isn't a field that sees rapid changes in technology or technique, but there's still room for innovation. Chris Lo questions the experts about safety and performance improvements in the mining industry's specialism - …

Applicability of Controlled Blasting in Large Opencast ...

The explosives loaded in a hole varied from 1,150 to 2,300 kg for dragline blast. Total explosive weight detonated in a blast round varied between 1279 to 84,000 kg. The vibration measuring distances ranged from 200 to 5,480 m. Summary of blasts experimented during the study are given in Table 1.

Optimization of Blasting Parameters in opencast Mines

National Institute of Technology Rourkela This is to certify that the thesis entitled " Optimization of Blasting Parameters in Opencast Mines " submitted by Sri Manmit Rout (Roll. No.: 10305019) and Sri Chinmay Kumar Parida (Roll. No.: 10305017), in fulfillment of the requirements for the award of Bachelor of

Life cycle assessment of opencast coal mine production: a ...

The Yimin opencast coal mine was selected to conduct a case study. The production of 100 tons of coal was used as the functional unit to evaluate the environmental risks in the stages of stripping, mining, transportation, processing, and reclamation. A total of six environmental impact categories, i.e., resource consumption, acidification ...

Evaluation of Blasting Efficiency in Surface Mines

Blasting efficiency in surface Mines" by "Abinash Parida'', Roll Number 613MN3003, is a record of original research carried out by him/her under my supervision and guidance in partial fulfilment of the requirements of the degree of Master of technology (Research) in Mining Engineering. Neither this dissertation nor any part of it has ...

Improving Explosive Efficiency with Proper Stemming ...

Improving Explosive Efficiency with Proper Stemming The use of proper stemming for decreasing noise and increasing fragmentation in blasting. Stemming is a material that is poured into a borehole after the explosive has been loaded …

Prediction of Blast Induced Air Overpressure in Opencast …

The network is trained by 41 datasets with 50 epochs and tested by 15 dataset. The correlation co-efficient determined by a NN was 0.9574 while correlation co-efficient were 0.3811 and 0.5258 by generalized equation and statistical analysis respectively.

Quality and Performance of Permitted Explosives and ...

an explosive system, two main aims are to maximize safety and to minimize the total cost of mining. Although, stiff competition amongst the explosive suppliers has brought the prices of the explosives items down, but there has been concern over the quality of the explosives being supplied to the mining industry. Therefore,

NONEL INITIATION FOR ECO-FRIENDLY BLASTING

efficiency and also optimize the cost of blasting. Keywords: NONEL, Booster, Blast Hole Drilling, Mine PNR Mines, ANFO, – Detonators INTRODUCTION . Blasting is the process of breaking of bulk rock masses into loose forms, using explosive compounds. Here, the primary role is played by the explosives. The explosives are the

ON-BENCH PRACTICES FOR OPEN CUT MINES AND …

Australian Explosives Industry And Safety Group Inc. Code of Practice ON-BENCH PRACTICES FOR OPEN CUT . ... The goal of AEISG is to continuously improve the level of safety and security throughout our industry in the manufacture, transport, storage, handling and use of explosives and related materials thoughout r ... blasts at open cut mines ...

EXPLOSIVES AND BLASTING (OPENCAST) - Mine Portal

Explosives & Blasting in Opencast By: Partha Das Sharma E.Mail: [email protected] Page 2 Water Resistance : Explosives differ widely in resistance to water and moisture penetration. Some Explosives deteriorate rapidly under wet conditions, but others are designed to withstand water for

EVALUATION OF BLAST FRAGMENTATION OF AN …

OPENCAST MINE 1Mithilesh Kumar Rajak, 2M.J.A .Prince 1Assistant Professor, 2Assistant Professor 1Dept. of Mining Engineering 1AMET University, Chennai, India ABSTRACT: Fragmentation is one of the critical results of the blasting also treated as first quality demand in most types of blasting which

BLAST VIBRATION MONITORING IN OPENCAST MINES

7.1 Blast vibration study at open cast iron mine – a case study 43 7.1.1 Geology of the iron ore area 43 7.1.2 Description of the formation 44-46 7.1.3 Surface Blast Design 46-47 7.1.3 Observations of blast vibration of iron ore mine 47-51 7.2 blast vibration study at open cast coal mine – a case study 52

Enhancement of Drilling & Blasting efficiency in …

In Mining Engg.) E.mail- [email protected], [email protected]) Introduction: Computerized drilling and electronic detonators add precision at the mines to lower downstream costs. Gaining a competitive edge in a mature and basic industry like underground and opencast mines / quarries, it has taken a major leap forward in enhancement of

1. Introduction - dspace.nitrkl.ac.in

Explosive type (Special gelatin, NG based, Gun powder, Slurry explosive, ANFO, ... In some opencast mines it has been noticed that S/B ratio of 3 also work well. ... increase of blasting efficiency or dampen any open flames. The stemming length (S. …

Study of efficiency and productivity growth in opencast ...

mining regions showed decline in productivity between 1985 and 1990, 1990 and 1995 and 1995 and 1997, respectively. Technical progress seems to have been the major driving factor behind productivity growth in opencast mining, while efficiency growth has been the most important factor in growth of underground mine productivity. Underground mines ...

WASTE AND OVER BURDEN MANAGEMENT IN MEGA …

from Opencast Mines using high capacity machines like Dragline, Shovels, Dump Trucks, Surface miners etc. It is reported that there are mines producing 80 million tonnes per annum of coal from a single Opencast mine and there are projects planned to produce 110m million tonnes. All type of equipments and conditions are